CN110994583A - Vehicle-mounted direct-current power supply distribution control system - Google Patents
Vehicle-mounted direct-current power supply distribution control system Download PDFInfo
- Publication number
- CN110994583A CN110994583A CN201911280470.7A CN201911280470A CN110994583A CN 110994583 A CN110994583 A CN 110994583A CN 201911280470 A CN201911280470 A CN 201911280470A CN 110994583 A CN110994583 A CN 110994583A
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- Prior art keywords
- shunt
- vehicle
- input
- output
- control system
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/06—Details with automatic reconnection
- H02H3/066—Reconnection being a consequence of eliminating the fault which caused disconnection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
- H02H3/087—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current for dc applications
Abstract
The invention discloses a vehicle-mounted direct-current power distribution control system, which comprises a plug box and a power module positioned in the plug box, wherein the power module comprises a filtering module, a shunt device, a self-recovery fuse and a shunt control relay which are sequentially connected; the shunt circuit control relay is used for controlling the on-off of the shunt circuit; each branch is also provided with a self-recovery fuse for overcurrent protection, and the branch automatically recovers the path when the cooling time is cut off. According to the vehicle-mounted direct-current power supply distribution control system, each DC power supply has independent overcurrent protection and has a self-recovery function; and each DC power output has independent display and control.
Description
Technical Field
The invention relates to a power distribution device, in particular to a vehicle-mounted direct-current power distribution control system.
Background
In the cabinet, a dc distribution box is generally arranged to distribute the dc power from the power supply cabinet into a plurality of lines for output to the service units. The current commonly used dc distribution boxes include the following: (1) direct current block terminal. The dc distribution box can distribute a dual dc input to a dual multi-way dc output without monitoring the power state (on, off). (2) Direct current distribution subrack. The direct current distribution subrack combines two direct current inputs into one direct current output and monitors the power state (on and off), and the monitoring unit is arranged in the subrack. The existing defects are that one path of direct current output can not meet the backup requirement of a new product on a power supply; the monitoring unit is fixedly arranged in the plug-in box and is not easy to replace.
The prior system with one path of DC power supply input and multiple paths of DC power supply output has the following problems: only the overcurrent of the whole system can be protected, and each single DC power supply cannot be subjected to overcurrent protection, if one DC in a multi-path DC system is overcurrent, the whole power supply and distribution system does not work, and equipment connected to other DC power supplies is influenced; the capability of shunt display, large-current shunt control, shunt protection, low-temperature components and shielding design consideration is not provided.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the problems, the invention provides a vehicle-mounted direct-current power supply distribution control system, which is suitable for vehicle-mounted conditions, can convert one path of direct-current power supply input into a plurality of paths of current outputs, and each path has on-off control display and overload protection capabilities.
The technical scheme is as follows: the technical scheme adopted by the invention is that the vehicle-mounted direct-current power distribution control system comprises a plug box and a power module positioned in the plug box, wherein the power module comprises a filtering module, a shunt device, a self-recovery fuse and a shunt control relay which are sequentially connected; the shunt circuit control relay is used for controlling the on-off of the shunt circuit; each branch is also provided with a self-recovery fuse for overcurrent protection, and the branch automatically returns to a path when the cooling time is cut off; and a display screen is arranged on a panel of the plug-in box, and the signal input end of the display screen is connected with the control end of the shunt control relay and is used for displaying the connection state of each shunt.
In order to independently control the on-off of each branch, the control end of the branch control relay is connected with a button switch, the button switch is arranged on a panel of the plug box, and the on-off of the branch control relay is controlled by the button switch to realize branch output under the condition of direct current input.
The shunt device comprises an input shunt device and an output shunt device, wherein the input shunt device and the output shunt device are formed by terminal strips, the terminal strips of the input shunt device are electrically connected with an external power supply through input connectors, and the terminal strips of the output shunt device are connected with a load through output connectors. The input connector and the output connector both adopt aviation connectors.
Preferably, the filtering module adopts a direct current filter, and obtains a pure direct current for suppressing the alternating current signal by suppressing the differential mode interference.
In order to adapt to low-temperature environment, each DC power supply path adopts components which can endure the temperature condition of minus 40 ℃ to 85 ℃.
Has the advantages that: compared with the prior art, the invention has the following advantages: 1. independent overcurrent protection of each DC power supply and self-recovery function; 2. each DC power output has independent display control; 3. a filtering module is arranged and has the capacity of inhibiting input differential mode interference; 4. the input and the output adopt aviation connectors.
Drawings
FIG. 1 is a schematic structural diagram of a vehicle-mounted DC power distribution control system according to the present invention;
fig. 2 is a schematic diagram of the circuit of the present invention.
Detailed Description
The technical solution of the present invention is further described below with reference to the accompanying drawings and examples.
The structural schematic diagram of the vehicle-mounted direct-current power distribution control system is shown in fig. 1. Including subrack and power module, the subrack structure realizes fixing, bears, shows, the environmental protection function as power module's carrier, including box 3, panel (1, 8), control button 2 and input/output connector (10, 11), and the panel setting is on the box relative two sides, and button switch 2 is panel 1 in the front, and input/output aviation connector (10, 11) are backplate 8 in the back. The power module comprises a filtering module 9, shunting devices (4 and 7), a self-recovery fuse 6 and a shunting control relay 5 which are sequentially connected, wherein one path of external power supply inhibits an alternating current part in a power signal through the filtering module 9, is shunted into a plurality of shunts through the shunting devices (4 and 7), realizes direct current distribution, and then is output through the shunting control relay 5. The shunt control relay 5 is used for controlling the on-off of the shunt. Each branch is also provided with a self-recovery fuse 6 for overcurrent protection. The filtering module 9 is preferably a dc filter, and obtains a pure dc current for suppressing the ac signal by suppressing the differential mode interference. And a display screen is also arranged on the front panel 1 of the plug-in box, and the signal input end of the display screen is connected with the control end of the shunt control relay 5 and is used for displaying the connection state of each shunt.
In order to independently control the on-off of each branch, the control end of a branch control relay 5 is connected with a button switch 2, the button switch is arranged on a front panel 1 of the plug box, and the button switch 2 controls the on-off of the branch control relay 5 to realize branch output under the condition of direct current input.
The shunt device comprises an input shunt device 7 and an output shunt device 4, wherein the input shunt device 7 and the output shunt device 4 are formed by terminal strips, the terminal strips are electrically connected, the terminal strips of the input shunt device 7 are electrically connected with an external power supply through an input connector 11, and the terminal strips of the output shunt device are connected with a load through an output connector 10. Preferably, both the input connector 11 and the output connector 10 are aeronautical connectors.
The circuit module diagram of the vehicle-mounted direct-current power supply distribution control system is shown in fig. 2, and the circuit principle of the invention is explained as follows: when the power supply is electrified, the aerial connector is used for switching, the input current can flow through the direct current filter, and pure direct current without alternating current signals is obtained by inhibiting differential mode interference. The current from the DC filter is transferred to the shunt control relays of the shunt outputs through the terminal block, and flows through the self-recovery fuse. The shunt control relay can be a high-quality vehicle-mounted relay customized according to shunt loads, and the influence of arc discharge and spark is reduced. The shunt output is controlled by the on-off condition of the button switch control relay of the front panel, and the front panel output indicator lamp is lightened when the shunt outputs over-current. The current is output to the load through the aviation connector of rear panel, and too big load can lead to corresponding branch road self recovery fuse circuit breaking protection in the use, waits that the cooling time ends the automatic way of replying.
The power supply system can perform overcurrent protection on each independent DC power supply, and the protection fuse can realize self-recovery. Meanwhile, the main input end also has overcurrent protection and filtering functions.
The vehicle-mounted direct-current power supply distribution control system can bear the jolt of a vehicle-mounted environment, each DC power supply passage adopts components which can bear the temperature condition of-40-85 ℃, and the current passing capacity in 100A is customized according to the shunt requirement. In this example, the input voltage is DC28V, the total power is 2KW, and the shunt output can reach 30A; the exposed components are made of metal materials; the exposed components are specially-made products meeting electromagnetic shielding requirements, and the interior of the system is prevented from being subjected to electromagnetic interference. An integral heat dissipation passage is provided for each relay, and the integral heat dissipation passage is isolated from a device installation space to prevent dust from entering the interior of the case.
Claims (5)
1. A vehicle-mounted direct-current power distribution control system is characterized by comprising an inserting box and a power module positioned in the inserting box, wherein the power module comprises a filtering module, a shunt device, a self-recovery fuse and a shunt control relay which are sequentially connected; the shunt circuit control relay is used for controlling the on-off of the shunt circuit; each branch is also provided with a self-recovery fuse for overcurrent protection, and the branch automatically returns to a path when the cooling time is cut off; and a display screen is arranged on a panel of the plug-in box, and the signal input end of the display screen is connected with the control end of the shunt control relay and is used for displaying the connection state of each shunt.
2. The on-vehicle dc power distribution control system according to claim 1, wherein: the control end of the shunt control relay is connected with a button switch, the button switch is arranged on a panel of the plug-in box, and shunt output is achieved by controlling the on-off of the shunt control relay through the button switch under the condition that direct current input exists.
3. The on-vehicle dc power distribution control system according to claim 1, wherein: the shunt device comprises an input shunt device and an output shunt device, wherein the input shunt device and the output shunt device are formed by terminal strips, the terminal strips of the input shunt device are electrically connected with an external power supply through input connectors, and the terminal strips of the output shunt device are connected with a load through output connectors. The input connector and the output connector both adopt aviation connectors.
4. The on-vehicle dc power distribution control system according to claim 1, wherein: the filtering module adopts a direct current filter, and pure direct current for inhibiting alternating current signals is obtained by inhibiting differential mode interference.
5. The on-vehicle dc power distribution control system according to claim 1, wherein: each DC power supply path adopts components which can endure the temperature condition of minus 40 ℃ to 85 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911280470.7A CN110994583A (en) | 2019-12-13 | 2019-12-13 | Vehicle-mounted direct-current power supply distribution control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911280470.7A CN110994583A (en) | 2019-12-13 | 2019-12-13 | Vehicle-mounted direct-current power supply distribution control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110994583A true CN110994583A (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911280470.7A Pending CN110994583A (en) | 2019-12-13 | 2019-12-13 | Vehicle-mounted direct-current power supply distribution control system |
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| CN (1) | CN110994583A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202879394U (en) * | 2012-10-22 | 2013-04-17 | 南京依维柯汽车有限公司 | Electric car high-voltage integrated electrical power generating system |
| CN203800404U (en) * | 2014-05-07 | 2014-08-27 | 国网山东省电力公司聊城供电公司 | DC power distribution box |
| CN105914534A (en) * | 2016-05-24 | 2016-08-31 | 塔里木大学 | Energy-saving intelligent socket |
| CN109256765A (en) * | 2018-11-21 | 2019-01-22 | 广州领世汽车科技有限公司 | A kind of direct-current power distribution box |
-
2019
- 2019-12-13 CN CN201911280470.7A patent/CN110994583A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202879394U (en) * | 2012-10-22 | 2013-04-17 | 南京依维柯汽车有限公司 | Electric car high-voltage integrated electrical power generating system |
| CN203800404U (en) * | 2014-05-07 | 2014-08-27 | 国网山东省电力公司聊城供电公司 | DC power distribution box |
| CN105914534A (en) * | 2016-05-24 | 2016-08-31 | 塔里木大学 | Energy-saving intelligent socket |
| CN109256765A (en) * | 2018-11-21 | 2019-01-22 | 广州领世汽车科技有限公司 | A kind of direct-current power distribution box |
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Application publication date: 20200410 |
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| RJ01 | Rejection of invention patent application after publication |